News: You can search the forum for answers to your question in a previous discussion. Please click on the "Search" button above and enter the keyword to search. To get to the full discussion of a listed message, please click on the TITLE of the message listed in the search listing.

Just working with one of your 888 plc's and I would like some clarification, what is the maximum continuous output current from outputs #7 and 8 when in PWM mode. I know the max intermittant is 10Adc @24 Vdc, but I think I read in two different manuals that it is either 1A or 2A.

If you attach a heat sink properly to the metal tab on the MOSFET (IRL530 for MD888+) and have constant air flow pass the heat sink to bring out the generated heat then you should be pretty safe.

Maximum duty cycle allowable is 100% as long as the heat issue is taken care of. At 50% duty, the heat will be reduced by half. Hence you could have a 20% duty cycle for 10A current output which is equivalent to 2A at 100% duty cycle.

Thank you for your nice comments. The M-series PLC's unique Ladder+BASIC langugage is different from the pure ladder logic based PLCs offered by other vendors and we are glad to learn that you do enjoy programming our PLCs.